Custom 404 and 500 error pages, URL addresses are not redirected.

For 404 and 500 errors, we want to define a more user-friendly page.

Example

When visiting the following address:

Http://localhost/aaaa/bbb/ccc/ddd/eee/fff/ggg

The URL of the browser does not change, still is

Http://localhost/aaaa/bbb/ccc/ddd/eee/fff/ggg

But the page shows our custom error page.

First, add the following nodes in Web. config.

<system.webserver>    <httperrorsErrormode= "Custom">      <!--Jump 404 Page -      <RemoveStatusCode= "404"Substatuscode= '-1 ' />      <ErrorStatusCode= "404"Path= "/error/404"Prefixlanguagefilepath=""Responsemode= "Executeurl" />    </httperrors>  </system.webserver>

which

Path= "/error/404"

The value "/error/404" of Path is the URL address of the error page and can be defined by itself.

When a 404 error occurs, it jumps to that address.

Second, create a 404 error controller.

namespacewebapplication1.controllers{usingSYSTEM.WEB.MVC;  Public classErrorcontroller:controller {//        //GET:/error/         PublicActionResult Error404 () {//The "~/views/shared/error.cshtml" page is used here.             returnView ("Error"); }    }}

To add a routing rule:

namespacewebapplication1{usingSystem; usingSystem.Collections.Generic; usingSystem.Linq; usingsystem.web; usingSYSTEM.WEB.MVC; usingSystem.Web.Routing;  Public classRouteconfig { Public Static voidregisterroutes (routecollection routes) {routes. Ignoreroute ("{Resource}.axd/{*pathinfo}"); Routes. MapRoute ("error.404",                "error/404",                New{action ="Error404", CONTROLLER ="Error" }            ); //routes. MapRoute (//Name: "Default",//URL: "{controller}/{action}/{id}",//defaults:new {controller = "Home", action = "Index", id = urlparameter.optional}//);        }    }}

Second, create a filter that is designed to handle exceptions.

namespacewebapplication1.filters{usingSystem; usingSystem.Collections.Generic; usingSystem.Linq; usingsystem.web; usingSYSTEM.WEB.MVC;  Public classCustomhandleerrorattribute:handleerrorattribute {/// <summary>        ///exception handling. /// </summary>        /// <param name= "Filtercontext" ></param>         Public Override voidonexception (Exceptioncontext filtercontext) {if(Filtercontext.exception! =NULL)            {                //returns a 500 error. Filtercontext.result =NewViewResult {ViewName=View, Mastername=Master,}; Filtercontext.exceptionhandled=true;                FilterContext.HttpContext.Response.Clear (); FilterContext.HttpContext.Response.StatusCode=404; FilterContext.HttpContext.Response.TrySkipIisCustomErrors=true; return; }            Base.        Onexception (Filtercontext); }    }}

Since ASP. NET MVC already defines "Handleerrorattribute", just inherit and rewrite the "Onexception" method.

On the error.cshtml page, add:

" 404 Not Found ";

Otherwise, the page status is incorrect.

Complete, the "~/views/shared/error.cshtml" page is now used regardless of the 404 or 500 error.

：

Http://files.cnblogs.com/files/cjnmy36723/404%E4%B8%8E500%E9%94%99%E8%AF%AF%E9%A1%B5%E9%9D%A2%E6%BC%94%E7%A4%BA.rar

Custom 404 and 500 error pages, URL addresses are not redirected.